Download MendeleyVisualization of tRNA movements on the Escherichia coli 70S ribosome during the elongation cycle.
Agrawal, R.K., Spahn, C.M., Penczek, P., Grassucci, R.A., Nierhaus, K.H., Frank, J.(2000) J Cell Biol 150: 447-459
- PubMed: 10931859
- DOI: https://doi.org/10.1083/jcb.150.3.447
- Primary Citation of Related Structures:
1FCW - PubMed Abstract:
Three-dimensional cryomaps have been reconstructed for tRNA-ribosome complexes in pre- and posttranslocational states at 17-A resolution. The positions of tRNAs in the A and P sites in the pretranslocational complexes and in the P and E sites in the posttranslocational complexes have been determined. Of these, the P-site tRNA position is the same as seen earlier in the initiation-like fMet-tRNA(f)(Met)-ribosome complex, where it was visualized with high accuracy. Now, the positions of the A- and E-site tRNAs are determined with similar accuracy. The positions of the CCA end of the tRNAs at the A site are different before and after peptide bond formation. The relative positions of anticodons of P- and E-site tRNAs in the posttranslocational state are such that a codon-anticodon interaction at the E site appears feasible.
Organizational Affiliation:
Wadsworth Center, Department of Biomedical Sciences, State University of New York, Albany, New York 12201, USA.
